1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.Dd June 9, 2016 29.Dt UTIME 3 30.Os 31.Sh NAME 32.Nm utime 33.Nd set file times 34.Sh LIBRARY 35.Lb libc 36.Sh SYNOPSIS 37.In utime.h 38.Ft int 39.Fn utime "const char *file" "const struct utimbuf *timep" 40.Sh DESCRIPTION 41.Bf -symbolic 42This interface is obsoleted by 43.Xr utimensat 2 44because it is not accurate to fractions of a second. 45.Ef 46.Pp 47The 48.Fn utime 49function sets the access and modification times of the named file from 50the 51.Va actime 52and 53.Va modtime 54fields of the 55.Vt "struct utimbuf" 56pointed at by 57.Fa timep . 58.Pp 59If the times are specified (the 60.Fa timep 61argument is 62.Pf non- Dv NULL ) 63the caller must be the owner of the file or be the super-user. 64.Pp 65If the times are not specified (the 66.Fa timep 67argument is 68.Dv NULL ) 69the caller must be the owner of the file, have permission to write 70the file, or be the super-user. 71.Sh ERRORS 72The 73.Fn utime 74function may fail and set 75.Va errno 76for any of the errors specified for the library function 77.Xr utimes 2 . 78.Sh SEE ALSO 79.Xr stat 2 , 80.Xr utimensat 2 , 81.Xr utimes 2 82.Sh STANDARDS 83The 84.Fn utime 85function conforms to 86.St -p1003.1-88 . 87.Sh HISTORY 88A 89.Fn utime 90function appeared in 91.At v7 . 92